Mirror Diameter: 42 mm Material: Glass, Zinc Alloy This magnifier, featuring 5x magnification and a 45 mm long chain, is easy to wear and provides clear visibility. Portable and durable, it is safe for children to use in scientific experiments. Suitable for all ages including children, adults, and professionals, it is an excellent choice. Product Information: Color: Gold Material: Zinc Alloy, Glass Lens Condition: 100% New and High Quality Applicable Age Group: All Ages Dimensions (H x W x D): 56 x 45 x 6 mm Chain Length: 45 mm Features: 1. Attractive design with clear visibility. 2. Lightweight and easy to carry with a chain, wear around the neck, or move from place to place. 3. Elegant and stylish appearance, allowing for clear focus. Please note: 1. Color tones may vary based on monitor settings. 2. Manuals are included; minor variations may occur. Thank you for your understanding.